Contents
- Weather in May
- Frequently asked questions
- Average temperature in May
- Average pressure in May
- Average wind speed in May
- Average humidity in May
- Average rainfall in May
- Average rainfall days in May
- Average snowfall in May
- Average snowfall days in May
- Average daylight in May
- Average sunshine in May
- Average sunshine days in May
- Average UV index in May
- Average cloud cover in May
- Average visibility in May
Weather in May
Temperature
In May, the meteorological conditions in Vermillion change with the average high-temperature moving from a mild 57.7°F (14.3°C) in April to an agreeable 69.1°F (20.6°C). Throughout May nights, Vermillion registers an average low-temperature of 51.4°F (10.8°C).Humidity
In Vermillion, the average relative humidity in May is 70%.Rainfall
In Vermillion, during May, the rain falls for 16.5 days and regularly aggregates up to 3.23" (82mm) of precipitation. In Vermillion, during the entire year, the rain falls for 116.6 days and collects up to 21.26" (540mm) of precipitation.Snowfall
January through May, October through December are months with snowfall. May is the last month it regularly snows. During 0.2 snowfall days, in May, Vermillion aggregates 0.2" (5mm) of snow. In Vermillion, during the entire year, snow falls for 30.7 days and aggregates up to 13.9" (353mm) of snow.Daylight
In Vermillion, the average length of the day in May is 14h and 40min.On the first day of the month, sunrise is at 6:20 am and sunset at 8:28 pm. On the last day of May, sunrise is at 5:52 am and sunset at 8:59 pm CDT.
Sunshine
The average sunshine in May in Vermillion is 8.8h.UV index
In Vermillion, the average daily maximum UV index in May is 5. A UV Index estimate of 3 to 5 represents a medium health hazard from unprotected exposure to Sun's UV rays for the ordinary person.Note: A maximum daily UV index of 5 during May morphs into the following directions:
Preventative actions are necessary - The mandate to avoid skin and eye damage is in place. The Sun's harshest UV rays are around midday; it's wise to seek shade and limit time outdoors. Outfit yourself in sun-safe attire, like long sleeves, pants, a hat, and UV-blocking sunglasses. Pay attention! The reflection of snow can enhance the Sun's UV radiation almost double.
Frequently asked questions
What are the temperatures in Vermillion in May?
What is the average humidity in May in Vermillion?
How much does it rain in Vermillion in May?
What is the last month it snows in Vermillion?
How many hours of daylight does Vermillion have in May?
When is the sunrise / sunset in May in Vermillion?
How many hours of sunshine does Vermillion have in May?
How high is the UV index in May in Vermillion?
Average temperature in May
Vermillion, SD
- Average high temperature in May: 69.1°F
The warmest month (with the highest average high temperature) is July (84.4°F).
The month with the lowest average high temperature is January (26.8°F).
- Average low temperature in May: 51.4°F
The month with the highest average low temperature is July (64.9°F).
The coldest month (with the lowest average low temperature) is January (12.9°F).
Average pressure in May
Vermillion, SD
- Average pressure in May: 29.92"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.85"Hg).
Average wind speed in May
Vermillion, SD
- Average wind speed in May: 9.4mph
The windiest month (with the highest average wind speed) is April (11.1mph).
The calmest month (with the lowest average wind speed) is July (7.8mph).
Average humidity in May
Vermillion, SD
- Average humidity in May: 70%
The month with the highest relative humidity is January (84%).
The month with the lowest relative humidity is October (65%).
Average rainfall in May
Vermillion, SD
- Average rainfall in May: 3.23"
The wettest month (with the highest rainfall) is June (3.35").
The driest months (with the least rainfall) are January and February (0.63").
Average rainfall days in May
Vermillion, SD
- Average rainfall days in May: 16.5 days
The month with the highest number of rainy days is June (17.3 days).
The months with the least rainy days are January and February (2.8 days).
Average snowfall in May
Vermillion, SD
- Average snowfall in May: 0.2"
The months with the highest snowfall are January and February (2.83").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in May
Vermillion, SD
- Average snowfall days in May: 0.2 days
The month with the highest number of snowfall days is February (7.1 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Vermillion, SD
- Average daylight in May: 14h and 4min
The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 6min).
- Average sunshine in May: 8h and 5min
The month with the most sunshine is July (Average sunshine: 10h and 54min).
The month with the least sunshine is January (Average sunshine: 4h and 30min).
Average sunshine days in May
Vermillion, SD
- Average sunshine days in May: 12.8 days
The month with the most sunshine days is January (22.2 days).
The month with the least sunshine days is June (10.3 days).
Average UV index in May
Vermillion, SD
- Average UV index in May: 5
The months with the highest UV index are June, July and August (UV index 6).
The month with the lowest UV index is January (UV index 1).
Average cloud cover in May
Vermillion, SD
- Average cloud cover in May: 40
The month with the most cloud cover is January (Cloud cover 51).
The month with the least cloud cover is July (Cloud cover 25).
Average visibility in May
Vermillion, SD
- Average visibility in May: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Vermillion, South Dakota, USA
Weather forecast for your location
2. Allow the app to use your location
